In February, Chapman walked the red carpet at the Academy Awards concealing her baby bump in a flowing ivory gown. She was on the arm of her husband, who produced the best picture nominee "Silver Linings Playbook."

Chapman and Weinstein, chairman of movie studio the Weinstein Co., already have a daughter together, India Pearl, 2. Weinstein, 62, has three daughters from a previous marriage: Emma, Lily and Ruth.

When the couple announced they were expecting last December, Weinstein said he didn't know the sex.